Unreleased Half-Life games

''Half-Life'' is a series of first-person shooter games developed and published by Valve, beginning with the original ''Half-Life,'' released for Windows in 1998. The earliest known canceled ''Half-Life'' game dates to 1999. Between '' Half-Life 2: Episode Two'' (2007) and '' Half-Life: Alyx'' (2020), Valve canceled at least five ''Half-Life'' games, including '' Half-Life 2: Episode Three,'' a version of ''Half-Life 3,'' and games by the studios 2015, Inc., Junction Point Studios and Arkane Studios.

''Half-Life'' era (1998–2004)

''Half-Life: Hostile Takeover''

On November 23, 1999, ''GameSpot'' reported that 2015, Inc. was developing a ''Half-Life'' expansion pack to follow '' Half-Life: Opposing Force.'' 2015, Inc declined to comment. On March 18, 2000, the Adrenaline Vault reported that the new expansion was named ''Half-Life: Hostile Takeover'', and that it had appeared on retail product lists with a release date of late August. On August 7, the Adrenaline Vault reported that ''Half-Life'' publisher Sierra had informed them that ''Hostile Takeover'' had been canceled. The stock keeping unit for ''Hostile Takeover'' was repurposed by online retailers for '' Half-Life: Counter-Strike''. On June 21, 2001, Valve filed a video game trademark for "Hostile Takeover". After several extensions, the trademark expired on October 3, 2004.

''Half-Life'' Dreamcast port

On February 14, 2000, Sierra announced that a port of ''Half-Life'' to the Dreamcast console was in development by Captivation Digital Laboratories with Valve and Gearbox Software. The Dreamcast port would feature several improvements, including higher-polygon player characters and new lighting effects. Gearbox, who had developed ''Opposing Force'', would create a new single-player campaign for the Dreamcast port, '' Half-Life: Blue Shift,'' focusing on the security guard character Barney.

The port was delayed to September 2000, then November. In November, game publications began to receive early copies for review. Reception was mixed, with criticism for the inconsistent framerate, long loading times, and lack of online play. Recognizing the demand for online play, Sierra planned to release a version of the port with online multiplayer using SegaNet. Gearbox CEO Randy Pitchford said he suggested including additional multiplayer modes and mods from the PC version, including ''Team Fortress Classic'' and the multiplayer modes from ''Opposing Force.'' Sierra delayed the port again to ensure that it met the "high expectations of consumers", and said that they hoped to finish development by the end of the year.

On March 29, 2001, Sierra announced that ''Blue Shift'' would be released for Windows along with the new models that had been developed for the Dreamcast version as part of the ''Half-Life High Definition Pack''. On June 16, 2001, four days after the release of ''Blue Shift'', Sierra announced that it had canceled the Dreamcast port, citing "changing market conditions". It was weeks away from its release date and was virtually complete. In 2013, a late build of the Dreamcast version leaked online, featuring complete versions of ''Half-Life'' and ''Blue Shift''.

''Half-Life 2'' era (2004–2007)

''Half-Life 2: Episode Three''

In May 2006, Valve announced a trilogy of episodic games that would continue the story of ''Half-Life 2'' (2004). '' Episode One'' was released on June 1, 2006, followed by '' Episode Two'' on October 10, 2007. ''Episode Three'' was initially planned for Christmas 2007. Valve released little information about it in the following years, and in 2011 ''Wired'' described it as vaporware.

Valve eventually abandoned episodic development, as they wanted to create more ambitious games. The designer Robin Walker said Valve failed to find a unifying idea for the game that provided a sense of "wonderment, or opening, or expansion". Additionally, they had started developing a new game engine, Source 2; as developing ''Half-Life 2'' and the original Source engine simultaneously had created problems, Valve delayed development of a new ''Half-Life'' until Source 2 was complete.

In 2016, Marc Laidlaw, the writer of the ''Half-Life'' series, left Valve. In 2017, he posted a short story, "Epistle 3", on his website. Journalists interpreted it as a synopsis of the plot for ''Episode Three''; alternatively, it may have been intended for ''Borealis'', another canceled project. Walker denied that it had been Valve's plan for ''Episode Three'', and said that it was likely just one of many ideas by Laidlaw. After Laidlaw published the story, some players left negative reviews for ''Dota 2'' on Steam, believing that Valve had forgone the ''Half-Life'' series. The story led to fan efforts to create ''Episode Three.''

Junction Point Studios episode

Another ''Half-Life 2'' episode was developed by Junction Point Studios, led by Warren Spector. The episode showed how Ravenholm became the town seen in ''Half-Life 2'', infested with headcrabs and zombies, and saw the return of the character of Father Grigori. It included a "magnet gun", which fired projectiles that magnetized metal surfaces and attracted objects and enemies, and would have been used for combat and puzzles.

Junction Point worked on the game for a year, producing enough content to demonstrate one section, and a vertical slice that demonstrated the magnet gun. Valve became uninterested in the project and Junction Point, who had been acquired by Disney Interactive Studios partway through the project, dropped it to instead develop ''Epic Mickey''. Images of the game appeared in early 2017.

''Ravenholm''

In 2007 or 2008, Valve gave the Junction Point project to Arkane Studios in Lyon, France. They developed it into a standalone game with the working title ''Ravenholm''. Players controlled Adrian Shephard from ''Half-Life: Opposing Force'' (1999)'','' working alongside Father Grigori, who had taken refuge in an abandoned psychiatric hospital. Grigori was experimenting with the effects of headcrab venom on himself, and would mutate through the story. The player would use the magnet gun and traps created by Grigori against enemies. Arkane also implemented a nailgun that could create paths to conduct electricity and set traps.

Valve gave Arkane freedom to develop ''Ravenholm'', as they had with Gearbox and ''Opposing Force'', providing feedback and technical support. With approximately one year left of development, Valve canceled the project; Arkane founder Raphaël Colantonio believed that Valve decided it would be too expensive, and Laidlaw said that Valve felt the premise was creatively constrained. ''Ravenholm'' was first shown publicly in a 2020 Noclip documentary; Noclip released an hour of gameplay footage in 2022.

Source 2 era (2007–2020)

''Half-Life 3''

''Half-Life 3'' was in development between 2013 and 2014. Valve planned to use procedurally generated levels alongside a "crafted experience", similar to the ''Left 4 Dead'' series; for example, the game would generate different routes through environments each time it was played. For the project, the team took new scans of the face of Frank Sheldon, whose likeness was used for the G-Man character in ''Half-Life 2''. The Source 2 engine was still unfinished and the project was canceled early in development.

''Borealis''

Before his departure from Valve in 2016, Laidlaw led a virtual reality project on the Source 2 engine named ''Borealis'', set on the time-travelling ship alluded to in ''Episode Two'' and ''Portal 2''. The game would skip between the time of the Seven Hour War, the period in which the Combine conquered Earth before ''Half-Life 2'', and a time set shortly after the events of ''Episode Two''. A minigame in which players would fish off the bow of the ship was also proposed. ''Borealis'' may have been the project that inspired Laidlaw's "Epistle 3" story.

References

{{Half-Life

Windows games
Half-Life (series)
Cancelled video games
Valve Corporation games